Efectividad de dos esquemas de inducción del celo en hembras bovinas Brahman con anestro prolongado.

Se ev aluo  el comportamiento reproductivo de vacas Brahman de cria, sometidas a induccion de celos, en la finca “Rancho Bonito”, region Gamelotal del Estado Lara, Venezuela. El experimento duro 90 dias y se baso en dos esquemas de induccion del celo: (Progesterona + Benzoato de Estradiol y Progesterona + PMSG). A las 72 h postrata-miento, se gesto el 62,5 % de las vacas que recibieron P4  + PMSG, mientras que con el tratamiento P 4  + BE se gesto el 25 % (P < 0,05). En los 90 dias se gestaron el 93,7 % de las vacas que recibieron P 4 + PMSG y el 75 % con el tra-tamiento P4 + BE, lo que muestra la efectividad de estos esquemas.Effectiveness of two Schemes for Estrus Induction in Brahman Bovine Females with Lasting Anestrus.ABSTRACTThe reproductive behavior of breeding  Brahman cows subject to estrus induction was assessed, at the “Rancho Bonito Farm”, Gamelotal  area, Lara State, Venezuela. The experiment lasted 90 days, and was based on two estrus induction schemes (Progesterone + Estradiol Benzoate and Progesterone + PMSG). Following 72 h of treatment, 62.5 % of cows that were administered  P 4 + PMSG, were fertilized; whereas the P 4 + BE treatment induced fertiliza-tion of 25 % (P < 0.05).  During the 90 days 93.7 % of the cows that received P 4 + PMSG, and 75 %with the P4 +  BE treatment, were fertilized, which proved the effectiveness of the schemes.